Malicious PDF — malware analysis report

Static analysis result for SHA-256 a165ec57f7bdda5b…

MALICIOUS

PDF

75.6 KB Created: 2021-03-10 03:53:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a1e97ad6038d385982b18d63507c4b08 SHA-1: b743441b5c956cbdc07a4613ccf40985664feed3 SHA-256: a165ec57f7bdda5bdc39752d9e325112e58ca1dc7934d61e5e2d977fcec55c3a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/strik?utm_term=rutgers+information+technology+major+requirements PDF link annotation
    • http://afracheat1.xyz/first_person_point_of_view_worksheets_6th_gradeus5jf.pdfIn PDF document text
    • http://ygrash.website/jumping_spider_bite_symptoms_south_africa7v7rh.pdfIn PDF document text
    • http://vopugixeroramox.medianewsonline.com/fundamentos_de_marketing_kotler_octava_edicion.pdfIn PDF document text
    • http://wigageturuv.mywebcommunity.org/mubig.pdfIn PDF document text
    • http://totalcreditcheck.info/radabq3wzj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370057/normal_5fd09f93e952b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393019/normal_60375a8ade4c4.pdfIn PDF document text
    • http://axecheat9.xyz/kajefuno3f68i.pdfIn PDF document text
    • http://copyright-central-media.com/xidupelevaxiwujixaptcl2.pdfIn PDF document text
    • http://jobauthor.online/87591500799nv847.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lekelepowo/jonanuweriregodenakajasu.pdfIn PDF document text
    • https://s3.amazonaws.com/wuvepilamamuse/habitat_of_animals_worksheet_grade_4.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/angularjs_2_tutorial_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nufidibodudulad/perfiles_de_aluminio_en_forma_de_u.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/19609759446.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/action_competence.pdfIn PDF document text
    • http://liraperuwuw.atwebpages.com/28795800893.pdfIn PDF document text
    • https://s3.amazonaws.com/rodakarugupoko/bhojpuri_gane_hd_video_song.pdfIn PDF document text
    • https://s3.amazonaws.com/fexuror/2268834305.pdfIn PDF document text
    • https://s3.amazonaws.com/sutawowirosuvuv/nintendo_emulator_for_android_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA2D 5608 bytes
SHA-256: ee679910fbca2b1ba8d7688bc0fad86cc4a13d60da4d48e8e54c2cc8cea048f4
font_01_sfnt_off0000fd2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2A 10504 bytes
SHA-256: 3a8e6affcaf64d147a8423c431bff9028bd7cb332f7f65f84e943515b35f66e6

Open this report in the interactive analyzer, or submit your own file for analysis.